Spring-wheel.



G. B. FRIESEN. SPRING WHEEL. APPLIoATIoN FILED 23.14. 1909.

Patented Sept. 20, 1910.

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GEORGE E. FRIESEN, OF NORTH YAKIMA, WASHINGTON.

SPRING-WHEEL.

Specication of Letters Patent.

Application filed April 14, 1909.

Patented Sept. 20, 1910.

Serial No. 489,831.

To all 'whom it may concern:

Be it known that I, GEORGE E. FninsnN, a citizen of the United States,residing at North Yakima, in the county of Yakima and State ofWashington, have invented a new and useful Spring-Vheel, of which thefollowing is a specification.

The present invention aims to improve generally the construction ofspring or resilient vehicle wheels and incidentally to so construct thewheels as to exclude dust and dirt from the cushioning elements thereof.

The invention further aims to provide means for automatically taking upthe slack of the cushioning springs or other elements of the wheelwhereby to render the wheel yieldable in the same manner as if theordinary pneumatic tires were employed.

In the drawings, there are shown two embodiments of the invention and ofthe figures of the drawings, Figure 1 is a side elevation parts beingbroken away and parts being shown in section, of one form or embodimentof the invention. Fig. 2 is a horizontal sectional view on the line 2-2of Fig. 1.

Referring more specifically to the drawings the numeral 5 indicates awheel axle upon which is journaled a hub sleeve 6 which is exteriorlythreaded as is clearly shown in Fig. 2 of the drawings, and upon whichand medially located with respect to the ends thereof, is disposed adisk 7 held in place through the medium of nuts S which are threadedupon the sleeve from o posite ends thereof and confine the said diskbetween them. Also disposed upon the hub sleeve and located one beyondeach of the disk securing nuts 8 are circular hub plates 9, these platesbeing held securely in position upon the sleeve by means of suitablenuts 10 which are threaded upon the sleeve, as in the case of the nuts8, from the ends thereof and confine the said plates therebetween andthe respective nuts S.

It will be understood from an inspection of the drawings and from theforegoing description of the hub section of the wheel that the circularhub plates 9 are held in opposed relation and parallel with respect toeach other.

In addition to the hub section of the wheel just described, the wheelembodies a spoke carrying section which is normally concentric withrespect to the hub section and is yieldably supported with respectthereto,

and this spoke carrying section just mentioned comprises side portions11 which are annular in forni and are connected in spaced parallelrelation and concentric one with respect to the other by an integral web12 which also is annular. In addition to being connected by the web 12,the side portions ll are further connected through the medium of radialwebs 13 forming pockets 14 in which are received the inner or butt endsof spokes 15, there being rivets or bolts 16 secured through the saidside portions 11 and the said butt ends of the spokes 15 whereby to holdthe spokes securely in the pockets 14. The side portions 11 are furtherconnected through the medium of bolts or rivets 17 which pass throughspacing sleeves 18, the points of engagement of these bolts or rivets'17through the said side portions 11 being adjacent the inner peripheriesof the said side portions.

The disk 7 is formed at points equi-distantly spaced and adjacent itsperiphery, with openings 19 through which are secured the inner ends ofexpansible springs 20, the outer ends of these springs being connectedeach to the inner end of a threaded stem 21 which extend radially fromthe hub of the wheel and through openings formed in the annular web 12of the spoke carrying section of the wheel, there being an adjusting anda jam nut 22 threaded upon each stem 21 and bearing against the outersurface of the annular web 12, the nuts being held in this engagementwith the web by reason of the tension exerted by the spring 20. Beyondthe nuts 22 upon each stem 21 there is threaded upon the stem a nut 23against which bears a washer 24, there being' a co1n pressible spring 25engaged upon the stem and bearing at one end against the web l2 and atits outer end against the said washer 24.

It will be understood from the foregoing description of this form of theinvention that there will be a certain slack in the lower ones of thesprings 2O when weight is disposed upon the wheel owing to the expansionof the upper ones of the springs and that such slack will beautomatically and effectually taken up through the medium of the springs25 so that the springs 20 will not only be relieved of suddenly imposedforces tending to alternately expand and contract them but inasmuch asthe slack is automatically taken up, the Wheel Will be effectuallycushioned and will yield substantially in the manner of a pneumatictired Wheel.

It is preferable toprovidein the opposed faces of the hub plates 9,inserts 2G of hardened metal and to provide similar inserts 27 in theouter faces of the side portions 1l of the spoke-carrying member of theWheel it being understood that these inserts effectually take up theWear incident to the frictional contact of the side portions ll of thespoke carrying portion of the Wheel with the opposing` faces of the hubplates 9 of the hub section of the Wheel.

What is claimed isl. In a Wheel, normally concentric Wheel sections,expansible .springs connecting the sections, and slack `absorbing`compressible springs associated with 'fthe expansible springs.

2. ,In 4a Wheel, normally concentric Wheel sections, eXLpansible springs.each connected tocone section, compressible springs carried by theother section,and;a connectingmeans connected vwith theexpansiblesprings and with the compressible springs, said means beingadjustable to adjust the tension of said springs.

3. In a Wheel, normally concentric Wheel sections, expansible springseach connected to one section, compressible springs carried by-the othersection, a rod connected toieach of the expansible springs and extendingthrough the related compressible springs, a disk fitted upon therod, anda nut threaded upon the rod and bearing against Vthedisk to holdthe sameagainst one end-of the compressible spring, ,the nut being adjustableupon the .rod to adjust the tension ofthe springs.

In testimony that I claim the foregoing as myown, I havehereto affixedmy signature in the presence oftwo Witnesses.

vGEORGE E. FRIESEN.

.Vitnesses R. E. HULL, F. D. SAQKETT.

